mountains. three of these things. the parent low. brings them in. as the systems roll in, they come in tonight, late, tomorrow morning, then saturday morning early and sunday all day. first two events are over night events into the morning hours. the model bears it out. at 5:00 p.m., this model updated and it slowed the progression of the system. 11:00 p.m. tonight, showers still north, right? the showers in the north bay. then it rains 4:00 a.m., the morning commute, still nothing in san jose. 6:00 a.m., scattered showers, heavy showers in santa rosa. wind advisory going on. 8:00 a.m., wet on the roads, cloudy in concord. 10:00 a.m., it breaks open.